Hmm. Looking at that, it seems that the chevron looking things might not be the actual chevrons. When they show the new gate spinning up, theres another light that goes on.
hmmm... according to the vid the actual chevron for the ship seems to be that circle above the door behind the gate....
It could be a normal gate with normal chevrons on any other planet but this ship must override it somehow.
thinking about it though the camera would have to be at an odd angle... maybe there is another one higher up on that wall....
EDIT: actually you can just see the dark outline of that circle/chevron above the larger one in the pic.
EDIT: indeed it is on the wall also all the other chevrons even the one on the floor light up.
EDIT: edited image.
going back to this img again:
